benos Posted September 2, 2020 Share Posted September 2, 2020 Each night, beginning in August, I see a specific star rise in the same spot behind a tree to the northeast of my porch. My chair is always in the exact same spot. About 30 minutes after it rises it disappears behind an electric pole. I timed its disappearnce for 7 consectutive days; and each nigh it disappears 4 minutes earlier. Why is that? Link to comment Share on other sites More sharing options...
CClassForLife Posted September 2, 2020 Share Posted September 2, 2020 You sure it's not an artificial satellite? Link to comment Share on other sites More sharing options...
BJB Posted September 2, 2020 Share Posted September 2, 2020 Because the Earth is 1/365 further along it's arc around the Sun each day. 4 minutes x 365 days yields 1460 minutes which is 24.3 hours, which would be one complete circuit of the Earth when viewed from the perspective of the Sun. Link to comment Share on other sites More sharing options...
benos Posted September 3, 2020 Author Share Posted September 3, 2020 That's not the answer I was looking for (or the easiest way to understand it), and it's not a satellite. Link to comment Share on other sites More sharing options...
arkadi Posted September 3, 2020 Share Posted September 3, 2020 What BJB is telling is that every day our view - observer on Earth - is rotated by 1/365 of the full cycle. That is about 4 minutes on time scale - like what you're seeing. You / we face same direction off by 4 min each day (not exactly, but ok for adjacent days). Link to comment Share on other sites More sharing options...
arkadi Posted September 3, 2020 Share Posted September 3, 2020 Anyway, you can get an app on the phone or tablet to overlay looking thru the camera. Most likely it will tell you what it is. Link to comment Share on other sites More sharing options...
Powder Finger Posted September 3, 2020 Share Posted September 3, 2020 all the math is just silly it's obviously that vortex stuff from Sedona has drifted south east and taken up residence at your pad. Link to comment Share on other sites More sharing options...
shred Posted September 4, 2020 Share Posted September 4, 2020 Time is relative. (Lunchtime doubly so.) Link to comment Share on other sites More sharing options...
benos Posted September 4, 2020 Author Share Posted September 4, 2020 On 9/3/2020 at 2:46 PM, arkadi said: What BJB is telling is that every day our view - observer on Earth - is rotated by 1/365 of the full cycle. That is about 4 minutes on time scale - like what you're seeing. You / we face same direction off by 4 min each day (not exactly, but ok for adjacent days). There is a simpler way to say that last sentence, that makes it instantly understandable. Link to comment Share on other sites More sharing options...
GrumpyOne Posted September 4, 2020 Share Posted September 4, 2020 1 hour ago, benos said: There is a simpler way to say that last sentence, that makes it instantly understandable. Summer is over. Link to comment Share on other sites More sharing options...
Dranoel Posted September 5, 2020 Share Posted September 5, 2020 Mars? Link to comment Share on other sites More sharing options...
benos Posted September 9, 2020 Author Share Posted September 9, 2020 Not getting much action... so here it is... The earth does not make one complete revolution on its axis every 24 hours. It makes one complete revolution every 23 hours and 56 minutes. Link to comment Share on other sites More sharing options...
lefty o Posted September 10, 2020 Share Posted September 10, 2020 isnt that why we have leap years, to straighten that out with the calendar? Link to comment Share on other sites More sharing options...
Youngeyes Posted September 10, 2020 Share Posted September 10, 2020 Is Arizona a state that allows legal recreational marijuana? That could be your answer right there. Link to comment Share on other sites More sharing options...
Rez805 Posted September 10, 2020 Share Posted September 10, 2020 13 hours ago, lefty o said: isnt that why we have leap years, to straighten that out with the calendar? Yep. In somewhat related trivia: The adoption of the Gregorian Calendar resulted in an interesting September in 1752. Link to comment Share on other sites More sharing options...
Nic_USPSA_C Posted September 18, 2020 Share Posted September 18, 2020 On 9/4/2020 at 6:44 PM, GrumpyOne said: Summer is over. Interesting Link to comment Share on other sites More sharing options...
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